当前位置: X-MOL 学术J. Am. Chem. Soc. › 论文详情
Orbitally Matched Edge-Doping in Graphene Nanoribbons
Journal of the American Chemical Society ( IF 13.858 ) Pub Date : 2018-01-02 , DOI: 10.1021/jacs.7b11886
Rebecca A. Durr, Danny Haberer, Yea-Lee Lee, Raymond Blackwell, Alin Miksi Kalayjian, Tomas Marangoni, Jisoon Ihm, Steven G. Louie, Felix R. Fischer

A series of trigonal planar N-, O-, and S-dopant atoms incorporated along the convex protrusion lining the edges of bottom-up synthesized chevron graphene nanoribbons (cGNRs) induce a characteristic shift in the energy of conduction and valence band edge states along with a significant reduction of the band gap of up to 0.3 eV per dopant atom per monomer. A combination of scanning probe spectroscopy and density functional theory calculations reveals that the direction and the magnitude of charge transfer between the dopant atoms and the cGNR backbone are dominated by inductive effects and follow the expected trend in electronegativity. The introduction of heteroatom dopants with trigonal planar geometry ensures an efficient overlap of a p-orbital lone-pair centered on the dopant atom with the extended π-system of the cGNR backbone effectively extending the conjugation length. Our work demonstrates a widely tunable method for band gap engineering of graphene nanostructures for advanced electronic applications.
更新日期:2018-01-03

 

Some contents have been Reproduced with permission of the American Chemical Society.
Some contents have been Reproduced by permission of The Royal Society of Chemistry.
分享到
评论: 0
期刊列表
Wiley论文编辑服务,每月大奖送不停!
深圳大学-同济大学联合招聘博士后(税后年薪30万)
华中师范大学第一届国际青年学者化学科学论坛
【问答】大分子介晶有哪些重要意义?
X-MOL近期新增451种期刊(20171216)
2017年中科院JCR分区化学大类列表
试剂库存管理
化合物查询
down
wechat
bug